722526480 has 280 divisors, whose sum is σ = 2715248088. Its totient is φ = 177666048.

The previous prime is 722526473. The next prime is 722526499. The reversal of 722526480 is 84625227.

722526480 is a `hidden beast` number, since 7 + 2 + 2 + 5 + 2 + 648 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5143824 + 717382656 = 2268^2 + 26784^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 757684 + ... + 758636.

Almost surely, 2^722526480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722526480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1357624044).

722526480 is an abundant number, since it is smaller than the sum of its proper divisors (1992721608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722526480 is a wasteful number, since it uses less digits than its factorization.

722526480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 722526480 is about 26879.8526781677. The cubic root of 722526480 is about 897.3280754267.

It can be divided in two parts, 7225264 and 80, that added together give a square (7225344 = 2688²).

The spelling of 722526480 in words is "seven hundred twenty-two million, five hundred twenty-six thousand, four hundred eighty".